Use shell checkout in Android CI

.forgejo/workflows/android.yml

@@ -14,12 +14,14 @@ jobs:
       GRADLE_VERSION: 8.10.2
     steps:
       - name: Check out repository
-        uses: actions/checkout@v4
+        run: |
+          git clone "http://forgejo:3000/${GITHUB_REPOSITORY}.git" .
+          git checkout "$GITHUB_SHA"
 
       - name: Install Gradle dependencies
         run: |
           apt-get update
-          apt-get install -y --no-install-recommends ca-certificates curl unzip
+          apt-get install -y --no-install-recommends ca-certificates curl nodejs unzip
 
       - name: Install Gradle
         run: |